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+ Advanced use RDFS Mariano Rodriguez-Muro, Free University of Bozen-Bolzano

7 advanced uses of rdfs

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Advanced use RDFS

Mariano Rodriguez-Muro, Free University of Bozen-Bolzano

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+Disclaimer

License This work is licensed under a

Creative Commons Attribution-Share Alike 3.0 License (http://creativecommons.org/licenses/by-sa/3.0/)

A few examples from these slides has been taken from Semantic Web for the working Ontologist. Chapter 6.

Some of the slides on the use of taxonomies are based on: http://info.earley.com/webinar-replay-business-value-

taxonomy-aug-2012

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+Reading material

Semantic Web for the working Ontologist. Chapter 6http://proquest.safaribooksonline.com/book/-/9780123859655

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+Uses of RDFS (and ontology)

Application oriented uses Application behavior without coding Data integration through vocabulary alignment, integration Controlled vocabularies

Formal ontology: Definition of taxonomies, e.g., parent/broader, child/narrower,

etc.

Taxonomy/Ontology can be used to create business/data value

Taxonomy can open the door for new kinds of data management

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Enterprise

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+Content Management

Increase the control/productivity that the enterprise has over their data to increase internal productivity, customer satisfaction, etc.

Why not “just Google” your sites? These do not work in the enterprise Back links and Statistics

In the enterprise, granularity is small

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+Search enhancement

Search enhancement Finding content (DB., entries, document collections, etc)

relevant to a query, but tagged with an alternative name

Key is search by metadata and organized metadata

Examples: Add synonyms to a query Language/translation Include more general terms

Precision vs Recall. The focus here is recall, get all “relevant” content.

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+Browsing and Navigation: Search overload

User doesn’t know what he wants precisely

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+Browsing and Navigation: Search overload

Facets

Give control to the user

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+Browsing and Navigation: Search overload

Note: Taxonomy is not navigation

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+Browsing and navigation, results

Faceted navigation in e-commerce: Findability Conversions Sales Market size Customer satisfaction etc.

Studies show that faceted navigation in enterprise content easily increases all these aspects in hard benchmarks.

See presentation by Earley & Associates

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+Content Reuse – Taxonomy in Content Management

Many use cases Look at business processes, group at targeted users Examples, knowledge management, content finding, etc. Useful when knowledge is large, and it needs to be

accessible fast

A Taxonomy can be used to Define content and document types (e.g., “Article”) Define the fields that will describe attributes (e.g., tag a

document with “Industry”) Define the actual values of certain fields (e.g., the list of

values for the attribute “Industry” might include “Construction”, “Information Technology”, “Utilities”, etc.)

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+Example: Knowledge management

Portal development Service a functional organization, e.g., call centers,

technical field services Key: Changing content Requires: Access to the latest's and best value always

Call centers representatives required 50% less time to solve a problem with correctly organized information.

Earley & Associates, 2012

Average reactive time per incident: 10.35hrsKnowledge Helpful Average Reactive TPI: 5.45hrsKnowledge Helpful Time Saved Per Incident: 43%

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+Content reuse: Improved Management of Marketing Assets Type: Magazine Ads

Channel: Print

Target Demographic: Parents

Country: US

Language: English

Concept: Rebellion

Brand: Settletra

Do your kids: Have discipline problems? Trouble paying attention? Trouble getting along?

Maybe It’s time to findout how Settletra can help

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+Content reuse

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+Content reuse: result

Requirement Images for campaigns

Question Do we have material for

this campaign

No? Produce new material

Use taxonomies to improve search

$1.25M /yr through digital asset management and increased image reuse (Earley & Associates)

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Public Entities

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+The power of large, curated taxonomies

Many large taxonomies developed in the context of large national and international projects

Large amount of knowledge

Clean knowledge (manually curated)

General knowledge (cover domains rather than applications)

Reusable to provide valuable services

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+Taxonomies resources

Taxonomy resources: http://www.taxonomywarehouse.com/ http://www.taxobank.org/ http://www.taxotips.com/resources/sources/ http://id.loc.gov/ http://id.loc.gov/authorities/subjects/sh85112348.html http://bioportal.bioontology.org/ http://www.w3.org/2001/sw/wiki/SKOS/Datasets

Some of these are actually ONTOLOGY repositories

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+Taxonomies in Biology

Taxonomies in Biology have been developed for a long time Large investment world wide Deployed in applications today

Include wide range of Biology subjects Macro and Micro biology (Genes, Human Anatomy) Medical terminologies Etc.

Started as knowledge management/sharing, now applications are being built.

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http:

//re

st.b

ioon

tolo

gy.o

rg

Ontology Services

• Download• Traverse• Search• Comment

Widgets• Tree-view• Auto-complete• Graph-view

Annotation

Data Access

Mapping Services

• Create• Download• Upload

Views

Term recognition

Fetch “data” annotated with a given term

http://bioportal.bioontology.org

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Annotation service

Process textual metadata to automatically tag text with as many ontology terms as possible.

90 million calls, ~700 GB of data

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Annotating Clinical Text

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Resource index

Pubmed Abstracts

Adverse Events (AERS)

GEO

:

Clinical Trials

Drug Bank

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+Semantic Annotation services

Semantic Annotations services are very wide spread

Topics include: General purpose (based on DBPedia URI’s for example) Specialized

Music Movies Libraries Biology

http://lmgtfy.com/?q=semantic+annotator http://dbpedia-spotlight.github.com/demo/index.html

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Summary

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+Summary: RDFS

Ontology languages, Ontologies

RDFS language and inferences

Common use patterns of RDFS inferences

Taxonomies Their value and use in the

enterprise Collections and

applications